Threats / Apache / CVE-2020-1956
CVE-2020-1956
· EUVD no mirror located
· GCVE no mirror located
Verified 2026-06-22
Apache Kylin vulnerability
Apache Kylin contains an OS command injection vulnerability allowing remote code execution through unsanitized input passed to system commands.
Verdict
Today item — known-exploited.
An unauthenticated or authenticated attacker can inject arbitrary operating system commands through Kylin's input handling, achieving remote code execution with the privileges of the Kylin process. The vulnerability is actively exploited in the wild.
01
Is it exploitable?
— the evidence, ranked above the scoreExploit available
Public proof-of-concept exploit code is cataloged for this vulnerability.We link the existence of the exploit; we do not host or redistribute payloads.
Reported exploitation
22 independent public reports of in-the-wild exploitation are cataloged.Distinct reporting sources (vendor, incident response, government); open them for the underlying claims.
Exploited in the wild
Listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-03-25).
Probability (EPSS)
EPSS 0.9796 — modeled likelihood of exploitation activity.EPSS is a daily-changing model output — open the source for today's value.
Severity / affected
Affected: Apache, Kylin. Confirm exact fixed builds in the vendor advisory.
Weakness (CWE)
Mapped to CWE-78 OS Command Injection — weakness family: Injection.CWE assignment from the public NVD record; the weakness class drives how the flaw is exploited.
02
Who’s exploiting it?
— attribution turns risk into urgencyAttribution not established
No confirmed (advisory-backed) threat-actor attribution is established for this record. Absence of a named actor is not absence of compromise — see Coverage & confidence.
03
Why it matters
— the attack path, told twice: adversary, then board1
Front door — unauthenticated access narrative 1
Attacker
I craft a malicious request containing shell metacharacters targeting a Kylin input parameter that is passed unsanitized to an OS command.
Business
An attacker gains code execution within the Kylin application environment, potentially compromising data analytics infrastructure and sensitive datasets.
2
Keys to the kingdom — privilege/identity takeover narrative 2
Attacker
I execute arbitrary commands with the privileges of the Kylin service account to establish persistence or pivot to other systems.
Business
The organization loses control of its analytics platform and faces potential lateral movement into connected data warehouses and business intelligence systems.
3
Lateral reach — past segmentation narrative 3
Attacker
I exfiltrate or manipulate data stored in or accessible through Kylin, or deploy malware for further compromise.
Business
Confidential business intelligence, customer data, and analytical models are exposed or corrupted, resulting in regulatory violations and operational disruption.
04
What to do
— defensible action- Remediate per the vendor advisory — confirm the fixed build for your version and verify exposure.1
Say it to the boardA vulnerability with this evidence profile is a defensible budget line, not a backlog ticket — fund the change against the proof above.
05